<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			.earth{
				width: 310px;
				height: 310px;
				background-image:url(image/地球.png) ;
				border-radius:165px ;
				
				position: relative;
				animation: run 5s linear infinite;
			}
			.earth:hover{
				animation-play-state:paused;
			}
			@keyframes run{
				from{transform: rotate(0deg);}
				to{transform: rotate(360deg);}
			}
		</style>
	</head>
	
	<body>
		<div class="earth"></div>
	</body>
</html>
